Date: Fri, 31 Dec 1999 15:33:16 -0800 From: R Joseph Wright <rjoseph@nwlink.com> To: Kent Stewart <kstewart@3-cities.com>, freebsd-questions@FreeBSD.org Subject: Re: some performance issues Message-ID: <386D3D3C.C92D02A3@nwlink.com> References: <386C023E.680FC31@inna.net> <386C0676.F39EC477@3-cities.com> <386C2354.ABD1ED54@nwlink.com> <386C3173.1D695393@3-cities.com> <386C543D.6E59C9DF@nwlink.com> <19991231104441.C2609@emu.sourcee.com> <386CE8AB.29A140B5@nwlink.com> <386CF9DC.B71A9887@3-cities.com>
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Kent Stewart wrote:
>
> You really should print a copy of the LINT file and look at it while
> you are reading this stuff. The ff tells the system to try and read
> ahead 15 sectors. You add all of this together and you can easily
> speed up your disk access 4x or more.
>
> Kent
>
> R Joseph Wright wrote:
> >
> > "Norman C. Rice" wrote:
> > >
> > > On Thu, Dec 30, 1999 at 10:59:09PM -0800, R Joseph Wright wrote:
> > > >
> > > > >
> > > > > The 0x2000 allows IDE DMA transfers and that could be part of your
> > > > > problem. Some drives like that setting and some systems don't. It is
> > > > > something that you can try by seting it at boot time. If it works,
> > > > > then you build it into your kernel. My drives are all 0xa0ffa0ff.
> > > > > 8+2=a.
> > > >
I recompiled my kernel and changed the flags from 0x80ff80ff to
0xa0ffa0ff. What is a good program to use to see if I can really tell a
difference? I tried out some of my bigger programs like star office and
gimp. Star Office still took a little while to load, gimp seemed to fly
(when it wasn't crashing).
Thanks a lot for all the help. I'm starting to understand the
hexadecimal thing a bit more now.
Joseph
--
You will do foolish things,
but do them with enthusiasm. Colette.
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